/* 滚动条 */
    body::-webkit-scrollbar {
        /*滚动条整体样式*/
        width : 12px;  /*高宽分别对应横竖滚动条的尺寸*/
        height: 1px;
    }

    body::-webkit-scrollbar-thumb {
        /*滚动条里面小方块*/
        border-radius   : 10px;
        background-color: skyblue;
        background-image: -webkit-linear-gradient(
            45deg,
            rgba(255, 255, 255, 0.2) 25%,
            transparent 25%,
            transparent 50%,
            rgba(255, 255, 255, 0.2) 50%,
            rgba(255, 255, 255, 0.2) 75%,
            transparent 75%,
            transparent
        );
    }

    body::-webkit-scrollbar-track {
        /*滚动条里面轨道*/
        box-shadow   : inset 0 0 5px rgba(0, 0, 0, 0.2);
        background   : #ededed;
        border-radius: 10px;
    }